Eris Exchange Participant Firms, Clearing Firms, and Brokers. Eris Exchange Control Center and Market Regulation

Advisory Notice TO: FROM: Eris Exchange Participant Firms, Clearing Firms, and Brokers Eris Exchange Control Center and Market Regulation ADVISORY: #11-09 DATE: November 1, 2011 SUBJECT: Notification of pending product certification with the Commodity Futures Trading Commission ( CFTC ) This Advisory Notice serves to notify Participants of Eris Exchange, LLC ( Eris Exchange or Exchange ) that the Exchange filed a product certification with the CFTC on November 1, 2011, for the Eris Interest Rate Swap Futures Contract (the Contract ), currently listed for trading on the Exchange. As part of the Exchange s transition from an Exempt Board of Trade (the Exchange s current operating status) to a Designated Contract Market ( DCM ), the Exchange must certify the products it will list for trading. See also Eris Exchange Advisory Notice #11-07 (October 26, 2011) (Eris Exchange Transition from an Exempt Board of Trade ( EBOT ) to a Designated Contract Market ( DCM )). The Exchange has made this filing pursuant to Section 5(c) of the Commodity Exchange Act and CFTC Regulation 40.2, in order for the Contract to be listed for trading on the DCM on November 7, 2011, the date on which the Exchange will launch as a DCM. If you have any questions regarding this Exchange notice, please contact Eris Control Center at 888-587-2699, Option 1, ErisControlCenter@erisfutures.com. You are receiving this email as you are subscribed to Notices@erisfutures.com. If you would like to unsubscribe or if you know of someone that should be on this distribution please contact the ErisControlCenter@erisfutures.com. 1 ECC Advisory #11-09 November 1, 2011

SUBMISSION COVER SHEET Exchange Identifier Code (optional) Date November 1, 2011 ORGANIZATION Eris Exchange, LLC. FILING AS A: DCM DCO DTEF TYPE OF FILING Rule Amendments Self-Certification Under Reg. 40.6(a) or 41.24 Commission Approval Requested Under Reg. 40.5 or 40.4 (a) Notification of Rule Amendment Under Reg. 40.6(c) Non-Material Agricultural Rule Change Determination Under Reg. 40.4(b) New Products Self-Certification Under Reg. 40.2 or 41.23 Commission Approval Requested Under Reg. 40.3 RULE NUMBERS DESCRIPTION (Rule Amendments Only)

November 1, 2011 BY ELECTRONIC FILING: submissions@cftc.gov Mr. David Stawick Secretary Commodity Futures Trading Commission Three Lafayette Centre 1155 21st Street, N.B. Washington, D.C. 20581 Re: Certification of Eris Exchange Interest Rate Swap Futures Product (Eris Exchange Submission #2011-01) Dear Mr. Stawick: Eris Exchange, LLC ( Eris Exchange or the Exchange ) herby notifies the Commodity Futures Trading Commission (the Commission ) of its listing of the Eris Interest Rate Swap Futures Contract (the Contract ) on Eris Exchange s electronic trading platform ( Eris SwapBook ) beginning November 7, 2011 (the Submission ). Pursuant to Commission Regulation 40.2, the Submission includes: (i) (ii) (iii) (iv) The Submission Cover Sheet; A copy of the Contract s rules, which were previously submitted to the Commission as part of the Exchange s DCM Application, approved by the Commission on October 28, 2011; The intended listing date; A certification by Eris Exchange that the product to be listed complies with the Act and Commission regulations thereunder; (v) A concise explanation and analysis of the Contract, attached documentation, and the Contract s compliance with applicable provisions of the Act; and, (vi) A certification that Eris Exchange posted the notice of pending product certification with the Commission and a copy of the submission, concurrent with the filing of a submission with the Commission, on the Exchange s Web site. Pursuant to Section 5(c) of the Commodity Exchange Act (the Act ) and Commission Regulation 40.2, Eris Exchange, certifies that the Eris Interest Rate Swap Futures Contract complies with the Act, including the core principles, and the Commission Regulations thereunder. 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 1

Eris Exchange further certifies that it has posted notice of pending product certification and a copy of the Submission on the Eris Exchange website, www.erisfutures.com. In that event or if you have questions, please contact me at 312-626-2681 or stephen.humenik@erisfutures.com. Sincerely, Stephen M. Humenik General Counsel and Chief Regulatory Officer 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 2

Eris Interest Rate Swap Futures Contract Product Explanation and Analysis The Eris Interest Rate Swap Futures Contract (the Contract ) is a cash settled futures contract based on interest rates. The Contract embeds the economics of a collateralized over-the-counter interest rate swap into a single futures price. The Contract is independently marked-to-market and settled every day by the Chicago Mercantile Exchange, Inc. ( CME Clearing ) based on data from the overall interest rate market. The Contract does not have periodic cash flows like standard over the counter ( OTC ) swaps, but replicates the economics of accrued and expected cash flows in the futures price, resulting in cash transfers through the daily variation margin process. Eris Exchange believes the Contract and the data on which it is based makes it unlikely that the Contract will be susceptible to manipulation. In addition, the Exchange s Market Regulation Department performs real-time surveillance, as well as trade practice and market surveillance to detect any conduct that may violate the Exchange Rules. A. Contract Composition The Contract Structure 1 is a $1 million notional principal which is used as the basis to calculate the value of periodic exchanges of interest. Fixed interest amounts are exchanged semiannually at a mutually-agreed-upon coupon rate per annum. interest amounts are exchanged quarterly and are based on 3-month dollar LIBOR. The exchanges of interest occur over a mutually-agreed-upon term to maturity. The Contract Specification sets forth the Swap Futures Leg Conventions for the Fixed Leg and Leg of the Contract. The Contract Size is one (1) Contract (or one (1) lot) equals $1 million USD face. The Effective Date is the first date from which fixed and floating amounts start to accrue. The Maturity Date is the last date to which fixed and floating amounts accrue. Contracts without a pre-defined fixed rate trade use a quoting convention in rate terms. These contracts will have a traded price of par. Changes in the value of the Contract are represented in by changes in the futures price. Contracts with a pre-determined fixed rated use a quoting convention in terms of Present Value ( NPV ). NPV is a component of the Eris Futures Price. Currently, the Effective Date of the Contract may be any valid business day up to 10 years from the trade date plus two days. The Underlying Tenor of the Contract, as measured from the Effective Date to the Alignment Date ( CFAD ), may be as long as thirty years. The Maturity Date is the final date to which fixed and floating amounts accrue. Reset Dates are the dates utilized to determine the fixed and floating amounts throughout the life of the Contract. See Attachment 1, Eris Interest Rate Swap Futures Contract Specifications. 1 For purposes of this Product Explanation and Analysis, capitalized terms used, but not defined herein shall have the meanings set forth in the Contract Specification attached hereto as Attachment 1, Eris Exchange Rulebook, Chapter 11: Eris Interest Rate Swap Futures Contract Specifications, previously submitted to the Commission as part of the Exchange s DCM Application, approved by the Commission on October 28, 2011. 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 1

The value of the Contract or the Daily Settlement Price (Futures-Style Price) is based upon four components. The Contract is priced using a basis of 100, which is similar to market practice for bonds and other futures contracts. To calculate the value of the Contract: (1) the 100 basis price is; (2) added to the NPV of the future cash flows at the time of settlement; (3) plus the value of accumulated coupon ( AC ) payments compounded daily at the Fed Funds rate; (4) minus the total return on modified variation margin ( TRMVM ) at the time of settlement. TRMVM may also be referred to as Price Alignment Interest, PAI, or Eris PAI TM. See Attachment 1 and Attachment 2, Swap Future Pricing Specification. 1. Index Price The Daily Settlement Price means that the Contracts are priced on a basis of 100, which is a constant that acts as an index price. 2. Present Value NPV is a term used in the OTC Interest Rate Swap (IRS) market. NPV is the net present value of all future fixed and floating amounts. For the settlement of the Contract, the 3-month dollar London Interbank Offered Rate ( LIBOR ) curve is used to estimate the future floating leg payments. The overnight indexed swap ( OIS ) curve is used to construct the LIBOR forward curve and to discount fixed and floating cash flows to present value. See Attachment 2; see also Attachment 3 OIS Based Curve Methodology (Confidential Treatment Requested by Eris Exchange, LLC Pursuant to 17 CFR 145.9). LIBOR refers to a daily reference rate based on the interest rates at which banks borrow unsecured funds from other banks in the London wholesale money interbank market. LIBOR rates are widely used as a reference rate for financial instruments such as interest rate swaps. The British Bankers Association ( BBA ) enlists a panel of banks in which each bank supplies the rate they perceive they could be offered funds in the London market for a certain currency and maturity. See BBALIBOR THE BASICS, http://www.bbalibor.com/bbalibor-explained/the-basics (last visited Oct. 25, 2011). Thomson Reuters is the designated calculation agent for BBA. Thomson Reuters audits the data submitted by panel banks and creates the rates using the definitions provided by BBA s FX & MM Committee, under the supervision of BBA. The LIBOR rate produced by Thomson Reuters is calculated by using a trimmed arithmetic mean. Once Thomson Reuters receive each bank s submissions Thomson Reuters ranks them in descending order and then drops the top and bottom quartiles this is known as the trimming. The middle two quartiles, reflecting 50% of the quotes, are then averaged to create the LIBOR quote. The BBA drops the bottom and top quartiles in the calculation in order to increase the accuracy of the LIBOR quotes. Dropping the outliers is done because an outlier does not reflect the market rate and it does not permit any one bank contributor to influence the calculation and affect the LIBOR quote. See Id. 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 2

Further, under the OIS methodology, discounting of future fixed and floating amounts is calibrated to the Fed Funds rate and derivatives instruments linked to the Fed Funds rates. See Attachment 3 for a detailed explanation of the Settlement Curve. In particular, the OIS curve is related to the OTC IRS market which is the largest derivative asset class in the world. According to the Bank for International Settlements the size of the OTC IRS market, as of December 2010, is an estimated $364 trillion in notional principal outstanding. See BIS Quarterly Review, September 2011, Page A131, Table 19 http://www.bis.org/publ/qtrpdf/r_qa1109.pdf. Because LIBOR and the OIS curve are rates derived from a third-party (not Exchange Participants) and are based on commonly used and publically available information, NPV is not likely to be subject to manipulation. 3. Accumulated Coupon Additionally, in the OTC markets, the parties to an IRS contract exchange fixed and variable coupon payments on set payment dates. See Attachment 4 Equivalence. In contrast, the parties to the Contract do not exchange cash coupon payments. Instead, the value of the coupon payments is embodied in the value of AC. The value of AC is the value of all previous cash flows compounded at the Fed Funds overnight rate to the current time. See THE FEDERAL RESERVE BANK OF NEW YORK FEDERAL FUNDS DATA http://www.newyorkfed.org/markets/ omo/dmm/fedfundsdata.cfm (last visited Oct. 25, 2011); see also Attachment 2. Under the Contract, Reset Dates define the beginning and end of fixed and floating interest accrual periods. In the period between Reset Dates, the value of the cash flows is reflected in the value of NPV. On the Reset Date, the cash flows shift from NPV to AC. The basis for setting all of the Reset Dates is the CFAD. The Reset Date occurs quarterly for floating contracts and semi-annually for fixed contracts. See Attachment 1. Because the value of AC is based upon a pre-determined fixed rate and LIBOR, and the Reset Date is based on the fixed CFAD, AC is not subject to manipulation. 4. Total Return on Modified Variation Margin The final component of the Contract is TRMVM. TRMVM adjusts the value of the Contract to account for the distinction between the treatment of collateral in OTC IRS and variation margin in futures. When an OTC IRS trade moves against a party they are required to post collateral to the other party. The party posting collateral retains legal ownership of that collateral and will be paid interest by the party holding that collateral (i.e., the in-themoney party). The collateral transfer terms and interest rate paid on collateral are defined in the Credit Support Annex ( CSA ) to the ISDA Master Agreement. The Contract assumes that the CSA has a $0 threshold and the interest rate is the overnight Fed Funds rate. See Attachment 2. 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 3

In contrast, when a futures contract moves against a party, there is a requirement to post variation margin to the clearinghouse. The clearinghouse will then credit the margin account of the other party in the trade (i.e., the in-the-money party). The party receiving the margin is the legal owner of those funds. It is assumed that funds in the margin account will earn interest. The party posting margin does not receive any interest on the funds that they have posted. See Attachment 2. TRMVM is an adjustment to the value of the Contract to compensate the party posting margin for interest that would have been earned in an analogous OTC IRS. In the Contract, the adjustment is reflected as a reduction in the futures price for the party who is in the money and has received margin. See Attachment 2. The traditional concept of TRMVM for interest rate swaps involves discrete daily interest payments or credits/debits between the counterparties to a contract. This is the approach employed by other market entities including some centralized counterparties. In order to track the total value of the swap throughout the life of its existence, the Contract embeds the cumulative TRMVM throughout the life of the Contract into the daily settlement price, referred to as Eris Price Alignment Interest or Eris PAI. This accumulation of daily interest adjustments allows the Contract to be traded on equivalent economic terms, without up-front payments, by any Eris Exchange market Participant. It is not relevant which parties bought and sold the original Contract. See Attachment 2. Because TRMVM is defined in the Contract and the interest rate is the overnight Fed Funds rate, TRMVM is not readily susceptible to market manipulation. B. Exchange Rules and Market Regulation Additionally, Eris Exchange has established rules and an enforcement infrastructure to prevent the manipulation of the Contract. See Eris Exchange Rulebook dated November 7, 2011 (submitted as part of the Eris Exchange DCM Application and available at http://www.erisfutures.com/sites/default/files/erisexchangedcm Rulebook.pdf) (see Chapter 5: Trading Practices and Business Conduct; Chapter 6: Privately Negotiated Transactions; and Chapter 7: Disciplinary Rules). The Exchange has rules related to position limits and position accountability levels, (see Rules 530, 531, and 533) and receives reports of large positions in order to assess a trader s power. See Rule 532. The Exchange does not currently have position limits set for the Contract, due in part, to the fact that the Contract does not have a deliverable supply. At this time, the Exchange has determined that position accountability levels will allow the Exchange to monitor the market and enforce the rules. The Market Regulation Department monitors for positions that meet or exceed reportable levels. The Eris Exchange Surveillance System will also generate alerts for various situations regarding open interest and large trader reported positions. The alerts include, but are not limited to, the following: (a) whenever an account is identified as a 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 4

large trader for the first time; (b) whenever large trader positions exceeds the reportable level; (c) whenever large trader positions exceeds speculative position limits; and, (d) whenever firm open interest exceeds Contract open interest by pre-defined limits. The Exchange sanctions Participants for violating position limits pursuant to Rule 532(k)(5). For a first violation, a Participant receives a warning letter. For a second violation, a Participant receives an automatic fine of either $5,000 or $15,000 depending on the level of the violation. Any third or subsequent violation is referred to the Chief Regulatory Officer for consideration of an issuance of charges. The Exchange also has provisions related to violations of the Exchange s Market Manipulation Rule 508. See Rule 715 (Sanctions). C. Conclusion Because the terms of the Contract are based upon independent and readily available information, and the Exchange has an established enforcement infrastructure to combat Contract manipulation, the Contract is not readily susceptible to manipulation and complies with the Act, including the core principles (namely, Core Principle 2 (Compliance with Rules); Core Principle 3 (Contract Not Readily Susceptible to Manipulation); Core Principle 5 (Position Limits or Accountability)), and the Commission Regulations thereunder. 311 South Wacker Drive Suite 950 Chicago, IL 60606 www.erisfutures.com 5

Attachment 1 Eris Interest Rate Swap Futures Contract Specifications

Attachment 2 Swap Future Pricing Specification

Eris Exchange Spot Starting Interest Rate Swap Futures: Swap Future Pricing Specification May 2011 1 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Table of Contents An Introduction to Eris Interest Rate Swap Futures... 3 Settlement Price Calculations... 3 Examples... 6 Description of Pricing Files...13 2 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Introduction to Eris Exchange Spot Starting Interest Rate Swap Futures Eris Exchange spot starting interest rate swap futures ( Eris contracts ) are futures contracts that provide the flexibility of un-cleared OTC interest rate swap(s) ( OTC IRS ) with the security of cleared futures contracts that are marked to market on a daily basis. The construction of the Eris contract allows it to be used in place of an OTC IRS with similar terms. At any point during the life of the Eris contract, the total profit or loss to a market participant is equivalent to the amount that a party would realize by executing an OTC IRS. This paper examines the features and pricing formulas applied to the spot starting Eris contract. Settlement Price Calculations Eris interest rate swap futures are priced on a basis of 100, similar to market practice for bonds and other futures contracts. The settlement value for the Eris contract is defined as: Where S t is the settlement price at time t, NPV t is the net present value of the future cash flows at time t, AC t is the value of the accumulated coupon payments compounded daily at the Fed Funds overnight rate, and TRMVM is the total return on modified variation margin at time t. TRMVM is also referred to as Eris Price Alignment Interest (or Eris PAI tm ). 100 is a constant that acts as an index price. The purpose of the 100 index price is to reduce the likelihood that the Eris contract price becomes a negative number as rates fluctuate. Negative prices can present challenges for traditional clearing systems. To simplify for discussion purposes, the following substitutions may be applied: A t = B t = C t = The settlement formula may be expressed as: [1] Looking at each term: NPV t is a familiar term for swap traders accustomed to trading traditional OTC IRS. It is the net present value of all future fixed and floating payments. For settling Eris contracts, the LIBOR curve is used to estimate future floating leg payments. The OIS curve is used to construct the LIBOR forward curve and to discount fixed and floating cash flows to present value: ( ) ( ) [2] 3 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

L i is the floating coupon at time t i, F i is the fixed coupon at time t i and D(t,t i ) is the value at time t of a riskless zero coupon bond worth 1 at t i. NPV t may include interest from the prior fixed and floating swap reset dates that apply to the current period. AC t, the accumulated coupon is the value of all previous cash flows compounded at the overnight rate to the current time: [ ( )] [3] Where t o is the initial time, t is the current time, is the cash flow paid/received at t i, is the fed funds overnight rate from t i to t i+1, and Δt t is the fraction of a year from day t i to t i+1, using the Actual/365 day count convention. In the context of daily settlement, this can be more easily written as: ( ) [4] It is important to understand the distinction between treatment of collateral in OTC IRS and variation margin in futures. OTC IRS Collateral: When a trade moves against a party they are required to post collateral to the other party. The party posting collateral retains legal ownership of that collateral and will be paid interest by the party holding that collateral (i.e., the in-themoney party). The collateral transfer terms and interest rate paid on collateral are defined in the Credit Support Annex ( CSA ) to the ISDA Master Agreement. We assume that the CSA has a $0 Threshold and the interest rate is the overnight Fed Funds rate. Futures Variation Margin: When a futures contract moves against a party, there is a requirement to post variation margin to the clearinghouse. The clearinghouse will then credit the margin account of the other party in the trade (i.e., the in-the-money party). The party receiving the margin is the legal owner of those funds. It is assumed that funds in the margin account will earn interest. The party posting margin does not receive any interest on the funds that they have posted. TRMVM t is an adjustment to the value of the Eris contract to compensate the party posting margin for interest that would have been earned in an analogous OTC IRS (also referred to as Eris PAI). In the Eris contract the adjustment is reflected as a reduction in the futures price for the party who is in the money and has received margin. The traditional concept of PAI for interest rate swaps involves discrete daily interest payments between the counterparties to a contract. This is the approach employed by other market entities including some centralized counterparties. In order to track the total value of the swap throughout the life of its existence, the Eris contract embeds the cumulative PAI throughout the life of the contract into the daily settlement price. This accumulation of daily interest adjustments allows the contract to be traded on equivalent economic terms, without up-front payments, by 4 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

any Eris Exchange market participant. It is not relevant which parties bought and sold the original contract. Substituting [1]: ( ) [5] ( ) [6] Taking the terms above, and looking at the daily returns on an Eris contract, from equation [1]: Substituting [4] and [6], [7] can be rewritten as: Simplifying, this becomes: ( ) [7] ( ) [ ( ) ] [8] [( ) ] ( ) [9] Interpreting this, ( ) is the change in the value of an OTC IRS. C t is the cash flows at the current time, so that any changes in NPV due to cash flows are balanced by the cash flow itself. The first two terms of the daily change in value are identical to those of an OTC IRS. The final term, is the interest on the previous day s collateral. It is negative because it is intended to offset the overnight interest on the margin account. Note from equation [5] that TRMVM (also referred to as Eris PAI) is measured versus a base of 100 throughout the life of the contract. An unwind of an Eris contract is effectively a transfer of that position to another counterparty. The instrument created by the original trade will remain outstanding until the maturity date. The basis for TRMVM calculations must remain at 100 because the TRMVM accumulates over the life of the contract and is a determinant of the terminal value. 5 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Examples Below are step-by-step examples showing the valuation and settlement procedure for an Eris contract over the course of several days, and at different points during the life of the contract. The values are compared against the returns of similar OTC IRS. Example 1: Initiating a Trade Trader #1 buys 1 Eris contract from Trader #2: Buy means to pay fixed or to have a long position 1 contract represents $1,000,000 notional 2 year contract at a 2% fixed rate Trade executed on 12/1/2008 Tables 1 and 2 illustrate cash flow dates, and accrual periods: Table 1 Dates Accrual Start Fixed Accrual End Day Count Year Fraction 6/3/2009 12/3/2008 6/3/2009 180 0.5 12/3/2009 6/3/2009 12/3/2009 180 0.5 6/3/2010 12/3/2009 6/3/2010 180 0.5 12/3/2010 6/3/2010 12/3/2010 180 0.5 Table 1 was generated to illustrate semi-annual fixed rate cash flows using a 30/360 day count. Each LIBOR settling is determined 2 business days prior to the fixing period. Quarterly cash flows are generated using an Actual/360 day-count. Table 2 Fixing Date Date Accrual Start Accrual End Day Count Year Fraction 12/1/2008 3/3/2009 12/3/2008 3/3/2009 90 0.25 2/27/2009 6/3/2009 3/3/2009 6/3/2009 92 0.255555556 6/1/2009 9/3/2009 6/3/2009 9/3/2009 92 0.255555556 9/1/2009 12/3/2009 9/3/2009 12/3/2009 91 0.252777778 12/1/2009 3/3/2010 12/3/2009 3/3/2010 90 0.25 3/1/2010 6/3/2010 3/3/2010 6/3/2010 92 0.255555556 6/1/2010 9/3/2010 6/3/2010 9/3/2010 92 0.255555556 9/1/2010 12/3/2010 9/3/2010 12/3/2010 91 0.252777778 At the time of the trade initiation, the LIBOR rate would be ~1.9702%, for the Eris contract to have an initial value of 0. For purposes of the example, we assume that the OIS curve is flat at 1% for all tenors and is compounded nightly. 6 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Table 3 Date Year Fraction Fixed Discount Factor Present Value 6/3/2009 0.5 $10,000.00 0.994971658 $9,949.72 12/3/2009 0.5 $10,000.00 0.989995722 $9,899.96 6/3/2010 0.5 $10,000.00 0.985071659 $9,850.72 12/3/2010 0.5 $10,000.00 0.980145235 $9,801.45 Total: $39,501.84 Table 4 Date Year Fraction Discount Factor Present Value 3/3/2009 0.25 $4,925.38 0.99748266 $4,912.98 6/3/2009 0.255555556 $5,034.83 0.994971658 $5,009.51 9/3/2009 0.255555556 $5,034.83 0.992466976 $4,996.90 12/3/2009 0.252777778 $4,980.10 0.989995722 $4,930.28 3/3/2010 0.25 $4,925.38 0.987557677 $4,864.09 6/3/2010 0.255555556 $5,034.83 0.985071659 $4,959.67 9/3/2010 0.255555556 $5,034.83 0.982591899 $4,947.18 12/3/2010 0.252777778 $4,980.10 0.980145235 $4,881.23 Total: $39,501.85 We now assume that at the end of the day the swap was executed that the LIBOR forward curve is flat at 2%. We can construct a payment schedule, discount future cash flows, and determine the NPV of the transaction. Table 5 Fixed Date Year Fraction Discount Factor Present Value 6/3/2009 0.5 $10,000.00 0.994971658 $9,949.72 12/3/2009 0.5 $10,000.00 0.989995722 $9,899.96 6/3/2010 0.5 $10,000.00 0.985071659 $9,850.72 12/3/2010 0.5 $10,000.00 0.980145235 $9,801.45 Total: $39,501.84 Table 6 7 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Date Year Fraction Discount Factor Present Value 3/3/2009 0.25 $5,000.00 0.99748266 $4,987.41 6/3/2009 0.255555556 $5,111.11 0.994971658 $5,085.41 9/3/2009 0.255555556 $5,111.11 0.992466976 $5,072.61 12/3/2009 0.252777778 $5,055.56 0.989995722 $5,004.98 3/3/2010 0.25 $5,000.00 0.987557677 $4,937.79 6/3/2010 0.255555556 $5,111.11 0.985071659 $5,034.81 9/3/2010 0.255555556 $5,111.11 0.982591899 $5,022.14 12/3/2010 0.252777778 $5,055.56 0.980145235 $4,955.18 Total: $40,100.33 The current methodology is for individual components of the Eris futures price to be calculated to 6 decimal places, and for the Eris Futures price to be rounded to 4 decimal places. For purposes of these examples, we will ignore those constraints. Per Contract NPV 0 = NPV floating NPV fixed = $40,100.33 -$39,501.84 = $598.48 The values of the various components can be divided by 10,000 to express the contract value on a 100 basis NPV 0 = 598.48 / 10,000 = 0.059848 As no coupons have been paid, AC = $0 Because there has been no margin held overnight, TRMVM = $0 Settlement Price for this swap on the first day would be: S 0 = 100 + NPV 0 + AC 0 - TRMVM 0 = 100 + A 0 + B 0 - C 0 S 0 = 100 + 0.059848 + 0-0 = 100.059848 Moving forward to the next day, if the LIBOR swap and OIS curves are unchanged overnight, then the only change in the NPV of the swap comes from the slight change in discount factors as the cash flow days are now one day closer. Table 7 Fixed Date Year Fraction Discount Factor Present Value 6/3/2009 0.5 $10,000.00 0.994998917 $9,949.99 12/3/2009 0.5 $10,000.00 0.990022845 $9,900.23 6/3/2010 0.5 $10,000.00 0.985098648 $9,850.99 12/3/2010 0.5 $10,000.00 0.980172088 $9,801.72 8 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Total: $39,502.92 Table 8 Date Year Fraction Discount Factor Present Value 3/3/2009 0.25 $5,000.00 0.997509989 $4,987.55 6/3/2009 0.255555556 $5,111.11 0.994998917 $5,085.55 9/3/2009 0.255555556 $5,111.11 0.992494167 $5,072.75 12/3/2009 0.252777778 $5,055.56 0.990022845 $5,005.12 3/3/2010 0.25 $5,000.00 0.987584734 $4,937.92 6/3/2010 0.255555556 $5,111.11 0.985098648 $5,034.95 9/3/2010 0.255555556 $5,111.11 0.98261882 $5,022.27 12/3/2010 0.252777778 $5,055.56 0.980172088 $4,955.31 Total: $40,101.42 Per Contract NPV 1 = $40,101.42 - $39,502.92 = $598.50 NPV 1 = 598.50 / 10,000 = 0.059850 = A 1 AC 1 = 0 = B 1 TRMVM 1 = (S 0 100 + TRMVM 0 )r 0 Δt 0 + TRMVM 0 = C 1 TRMVM 1 = (100.059848 100 + 0)*1%*(1/365) + 0 = 0.000002 = C 1 S 1 = 100 + NPV 1 + AC 1 TRMVM 1 = 100 + A 1 + B 1 - C 1 S 1 = 100 + 0.059850 + 0 0.000002 = 100.059848 Below is a comparison of the total value of holding a long position (i.e. paying fixed) in an Eris contract versus an OTC IRS. Recall that the party posting collateral on OTC IRS earns interest per the terms of the CSA. In a futures contract, the party posting variation margin does not earn interest. The party receiving margin can invest those funds and earn interest. Table 9 Eris Swap Future Traditional OTC IRS Transaction Value $598.48 $598.50 Interest earned on variation margin $0.02 $0.00 Total $598.50 $598.50 Example 2: Period covering a swap coupon payment 9 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Consider the same swap used in Example 1. On 3/2/2009, one day before the first floating coupon is paid, assume the initial values are as follows: Per Contract NPV 3/2/2009 = $25,000.00 NPV 3/2/2009 = 25,000 / 10,000 = 2.5 = A 3/2/2009 AC 3/2/2009 = 0 = B 3/2/2009 Per Contract TRMVM 3/2/2009 = $50 TRMVM 3/2/2009 = 50 / 10,000 = 0.005 = C 3/2/2009 S 3/2/2009 = 100 + 2.5 + 0 0.005 = 102.495000 = 100 + A 3/2/2009 + B 3/2/2009 - C 3/2/2009 On 3/3/2009, at settlement, the coupon is paid and the value of the coupon shifts from the NPV, to the AC. In a traditional OTC IRS, this would be a cash payment. Per Contract NPV 3/3/2009 = $20,000.00 NPV 3/3/2009 = 20,000.00 / 10,000 = 2.0 = A 3/3/2009 Per Contract AC 3/3/2009 = $5,000.00 + AC 3/2/2009 (1+r 3/2/2009 1/365) = $5,000.00 AC 3/3/2009 = 5,000.00 / 10,000 = 0.5 = B 3/3/2009 TRMVM 3/3/2009 = (NPV 3/2/2009 + AC 3/2/2009 )r 3/2/2009 Δt 3/2/2009 + TRMVM 3/2/2009 = C 3/3/2009 TRMVM 3/3/2009 = ($25,000+$0.00)*1%*1/365 + $50 = $50.68 = C 3/3/2009 S 3/3/2009 = 100 + 2 + 0.5 0.005068 = 102.494932 = 100 + A 3/3/2009 + B 3/3/2009 - C 3/3/2009 Performing the same calculations for 3/4/2009, Per Contract NPV 3/4/2009 = $20,000.00 NPV 3/4/2009 = 20,000.00 / 10,000 = 2.0 = A 3/4/2009 Per Contract AC 3/4/2009 = $0.00 + $5,000*(1+1%*1/365) = $5000.14 AC 3/4/2009 = 5000.14 / 10,000 = 0.500014 = B 3/4/2009 Per Contract TRMVM 3/4/2009 = ($20,000+$5,000)*1%*1/365 + $50.68 = $51.36 TRMVM 3/4/2009 = 51.36 / 10,000 = 0.005136 = C 3/4/2009 S 3/4/2009 = 100 + 2 + 0.500014 0.005136 = 102.494878 = 100 + A 3/4/2009 + B 3/4/2009 - C 3/4/2009 Below is a comparison of the total value of the Eris swap future and a traditional OTC IRS from the perspective of the party long the contract, Trader #1: Table 10 10 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Date NPV (A) AC (B) Eris Contract TRMVM (C) Eris Contract Settlement Price Cumulative Interest earned on variation margin Total Value 3/2/2009 $25,000.00 $0.00 $50.00 $102.495000 $50.00 $25,000.00 3/3/2009 $20,000.00 $5,000.00 $50.68 $102.494932 $50.68 $25,000.00 3/4/2009 $20,000.00 $5,000.14 $51.36 $102.494878 $51.36 $25,000.14 Table 11 Traditional OTC Swap Date NPV Cumulative Coupons Cumulative Interest earned on coupon reinvestment Cumulative Interest earned on collateral received Total Value 3/2/2009 $25,000.00 $0.00 $0.00 $0.00 $25,000.00 3/3/2009 $20,000.00 $5,000.00 $0.00 $0.00 $25,000.00 3/4/2009 $20,000.00 $5,000.00 $0.14 $0.00 $25,000.14 Example 3: Swap is unwound Assume that during the trading day on 3/4/2009 Trader #1 wants to unwind the position. Recall from Example 2 that B 3/4/2009 and C 3/4/2009 have already been established and will remain static throughout the day: AC 3/4/2009 = 0.500014 = B 3/4/2009 TRMVM 3/4/2009 = 0.005136 = C 3/4/2009 Trader #1 will solicit unwind values from market participants which will be expressed in price (USD) as is the market practice for unwinds of OTC IRS. The unwind quotes represent A, which is the NPV per contract: Trader #3 Unwind NPV: $21,000 Trader #4 Unwind NPV: $19,500 Trader #5 Unwind NPV: $18,900 Trader #1 will choose the highest unwind NPV of $21,000 from Trader #3 and execute the unwind transaction. This equate to 2.1 on a 100 basis (21,000 / 10,000). Unwind Price = 100 + NPV unwind + AC 3/4/2009 - TRMVM 3/4/2009 = 100 + A unwind + B 3/4/2009 C 3/4/2009 Unwind Price = 100 + 2.1 + 0.500014-0.005136 = 102.594878 Because the unwinding party executed the contract at 100, the total value realized is: 11 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Trader #1 P&L = (102.594878 100) * 10,000 * 1 = $25,948.78 Trader #1 will monetize the P&L through funds in the margin account. In this case, the margin account will need to be adjusted by the clearinghouse following the unwind. The current balance in the margin account is the difference between the prior settlement and the purchase price of the contract, which is less than the unwind amount less the purchase price: Margin account value: (102.494878 100) * 10,000 * 1 = $24,948.78 Because the Unwind Price is $1,000 higher than the prior settlement value, S 3/4/2009, the clearinghouse will pay trader #1 $1,000 in variation margin on 3/4/2009: Unwind Price - S 3/4/2009 = 102.594878 102.494878 = 0.10 Amount due to Trader #1 by clearinghouse = 0.10 * 10,000 * 1 = $1,000 The party that transacts the unwind, Trader #3, will replace Trader #1 as the holder of the contract. At the end of the trading day on which the unwind occurred, the position will be revalued and required variation margin will be determined. For example: If the Eris futures price is 103.0000, Trader #3 s margin account will be increased by $4,051. 22. This value represents the difference between the end of day value and the Unwind Price: $4,051.22 = (103.0000 102.594878) * 10,000 * 1 If the Eris contract value is 102.0000, Trader #3 s margin account will be reduced by $5,948.78. This value represents the difference between the end of day value and the Unwind Price: -$5,948.78 = (102.0000 102.594878) * 10,000 * 1 If the Eris contract value at the end of the day is equal to Unwind Price, the new party s margin account will not change Trader #2, the original Eris contract seller, will continue to post and/or receive variation margin as in prior periods. o Trader #2 will not know that Trader #1 has unwound their position unless they were a bidder in the unwind process 12 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Eris Exchange Publicly Available Files Eris Exchange strives for transparency in how we value our instruments. This ensures that Interest Rate Swap Futures can be traded anonymously and fairly within the marketplace. To that end, we publicly disseminate output files that describe how Eris Exchange interest rate swap futures are valued. A list of those files, and descriptions of the data in those files, can be found below. Name Description File Name Delivery Time 1. Eris Exchange BOD Pricing File Eris_YYYYDDMM_BOD_SwapPrices_OIS.csv Eris Exchange beginning of day pricing file provides a list of all tickers, previous days settlement prices, and B&C values calculated using the Fed Funds Rate published by the New York Federal Reserve that morning. 8:15 am ET (7:15 am CT) 2. Eris Exchange EOD Pricing File End of day pricing file that incorporates the 100 + A (NPV) + B (Historical coupon payments) - C ( Total Return on Variation Margin) calculation to derive the daily settlement price for open tickers. Eris_YYYYMMDD_EOD_SwapPrices_OIS.csv 4:45 pm ET (3:45 pm CT) 3. Eris Exchange Curve File The Eris Curve as of 3:00 pm NY time, incorporating LIBOR cash flow amounts with OIS discounting. Column A shows the duration (2y to 30y), and Column L (labeled FairCoupon (%) ) shows the coupon rate that would result in zero- NPV swap. Eris_YYYYMMDD_EOD_ParCouponCurve_OIS.csv 4:45 pm ET (3:45 pm CT) 13 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

4. Eris Exchange LIBOR Discount Factor File Daily LIBOR discount factors, spot rates and 3-month fixings for 30 years. Eris_YYYYMMDD_EOD_DiscountFactors_LIBOR. Csv 4:45 pm ET (3:45 pm CT) 5. Eris Exchange OIS Discount Factor File 6. Eris Exchange Swap Leg Price File Daily OIS discount factors and spot rates for 30 years. Daily pricing file that shows the fixed and floating payment dates and rates for Eris Exchange tickers, including most recent reset rate for floating leg. Eris_YYYYMMDD_EOD_DiscountFactors_OIS.csv Eris_YYYYMMDD_EOD_PricedSwapLegAnalysis_OIS.csv 4:45 pm ET (3:45 pm CT) 4:45 pm ET (3:45 pm CT) 7. Eris Exchange Swap Holidays File Daily files that shows the every exchange holiday for the next 40 years. Eris_YYYYMMDD_EOD_Holidays.csv 4:45 pm ET (3:45 pm CT) 14 www.erisfutures.com Copyright, Eris Exchange, LLC 2011

Eris Exchange EOD Pricing File Column Heading Description of Data Data Format Units Decimal Places Symbol The exchange assigned symbol, based on Tenor Bucket and a String NA NA counter to differentiate between similar instruments. For more information on how tickers are created, please see Ticker Symbology. Example: ZA0001 FinalSettlementPrice This is the settlement price published by CME. Float Dollars per 4 million notional divided by 10,000 1 EvaluationDate This is the date the file was processed. Date MM/DD/YYYY NA FirstTradeDate This represents the date the trade was initiated. Date MM/DD/YYYY NA TRMVMDate EffectiveDate flowalignmentdate The date from which return on variation margin will start to accrue. TRMVM will be non-zero on the first business day after this date. The start date of the first accrual period. For Spot Starting Swaps, this is 2 days after the First Trade Date, subject to Fed and UK holiday calendars. The date selected at the time of the trade for setting up cash flow (payment) dates for interest rate swap futures that are not Spot Starting. Date MM/DD/YYYY NA Date MM/DD/YYYY NA Date MM/DD/YYYY NA 15 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places Maturity Date The final day of the contract. Alignment Date adjusted by Modified Following on the Joint Fed/UK Calendar Date MM/DD/YYYY NA NPV (A) FixedNPV NPV This value corresponds to NPV t in the equations used in this paper. The NPV represents net present value of the future cash flows at time t. This is also one of the primary inputs needed for calculating a futures price for an interest rate swap future, using the calculation of FuturesPrice = 100+A+B-C. NPV is per 100 notional. The NPV ( Present Value) for the fixed leg of the trade, calculated that day. NPV is per 100 notional. The NPV ( Present Value) for the floating leg of the trade, calculated that day. NPV is per 100 notional. Float Float Dollars per million notional divided by 10,000 Dollars per million notional divided by 10,000 Dollars per million notional divided by 10,000 Coupon (%) The agreed upon fixed rate for the interest rate swap future. Float Rate in % 6 Float 8 8 8 FairCoupon (%) The coupon that would have resulted in NPV = 0. Float Rate in % 8 16 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places Fixed Fixed that occurs on the Evaluation Date. is for 100 Notional. that occurs on the Evaluation Date. is for 100 Notional. Float Float Dollars per million notional divided by 10,000 Dollars per million notional divided by 10,000 NextFixedDate The date the next fixed payment will be made. Date MM/DD/YYYY NA 8 8 NextFixedAmount The next fixed payment amount. Float Dollars per 8 million notional divided by 10,000 PreviousFixingDate The date the floating rate was set for the next floating payment Date MM/DD/YYYY NA 3mLiborRate (Decimal) The 3 month LIBOR rate applied to the leg for that instrument. Float Rate in % 8 NextDate The date the next floating payment will be made Date MM/DD/YYYY NA 17 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places NextAmount The next floating payment amount. Float Dollars per 8 million notional divided by 10,000 NextFixingDate The date at which the 3 month LIBOR rate will be assigned for the next floating leg period. Date MM/DD/YYYY NA Previous Settlement Date PreviousSettlementPrice PreviousTRMVM FedFundsDate FedFundsRate (%) This value corresponds to t-1 in the equations used in this paper. The last business day a settlement price was calculated. This value corresponds to S t-1 in the equations used in this paper. Settlement price calculated on Previous Settlement Date. This value corresponds to TRMVM t-1 in the equations used in this paper. The TRMVM on the Previous Settlement Date. The date that the for which the fed funds date was published (for example, a date of 4/12/2011 means that the rate was published on 4/13/11 by the NY Federal Reserve and applies from 4/12/2011 to 4/13/2011). Rate accrues from this date forward one business day. This value corresponds to r t-1 in the equations used in this paper. The Fed Funds Rate published for the Fed Funds Date by the Date MM/DD/YYYY NA Float Dollars per million notional divided by 10,000 8 Float Dollars per 8 million notional divided by 10,000 Date MM/DD/YYYY NA Float Rate in % 8 18 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places Accrualdays New York Federal reserve Bank. Rate is published at approximately 7AM CST for accruals overnight from previous business day to today. How many days have passed since settlement price was last calculated. This value is generally 1, but accounting for weekends and holidays, could be greater than 1. DailyReturnOnVM This number represents the day over day variation margin for 1 contract for this instrument ID, or TRMVM t -TRMVM t-1. As this instrument is a future and not a swap, margin is posted using variation margin as opposed to collateral. Whereas the holder of collateral retains any interest made off that collateral, interest is returned to the customer for variation margin. Int Days 0 Float Dollars per million notional divided by 10,000 8 Accrued Coupons (B) TRMVM (C ) In order to mimic the economics of OTC swaps, interest on variation margin is calculated included in the overall futures price of the instrument. This value corresponds to AC t in the equations used in this paper. As this instrument is a future and not a swap, no payments actually change hands throughout the life of the contract. This value represents accumulated coupon payments compounded daily at an overnight rate, and is one of the primary inputs needed for calculating a futures price for an interest rate swap future, using the calculation of FuturesPrice = 100+A+B-C. This value corresponds to TRMVM t in the equations used in this paper. Total Return on Modified Variation Margin (TRMVM) is the Float Float Dollars per million notional divided by 10,000 Dollars per million notional divided by 8 8 19 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places cumulative daily interest adjustment, or Total Return on Modified Variation Margin at time t. 10,000 As this instrument is a future and not a swap, margin is posted using variation margin as opposed to collateral. Whereas the holder of collateral retains any interest made off that collateral, interest is returned to the customer for variation margin. TRMVM is one of the primary inputs needed for calculating a futures price for an interest rate swap future, using the calculation of FuturesPrice = 100+A+B-C. Settlement Price (100+A+B-C) The settlement price for the instrument, calculated that day. Float Dollars per million notional divided by 10,000 RFQ NPV Tick Size Nominal ProductCode The minimum NPV increment, in dollars, that can be used to price Requests for Quotes. This is based on the tenor of the interest rate swap futures. 0 years 6.99 years is $50 7 years 19.99 years is $100 20 years+ is $200 This is the notional value used to calculate NPV s and Fixed and amounts. A notional of 100 is used to calculate the settlement price because the point value of the futures contract is $10,000. Eris contract notional is $1,000,000. The first 6 characters in the instrument ID. This shows Tenor Bucket and a counter to differentiate between similar instruments. Int Int Dollars per contract Base value for an Eris Contract String NA 0 8 0 20 Copyright, Eris Exchange, LLC 2011

Column Heading Description of Data Data Format Units Decimal Places TenorCategory Denotes the initial tenor for the instrument. String Self-defining 0 Footnote: 1 Contract value expressed on a 100 basis calculated by dividing contract value by 10,000 Our base futures price for a contract is $100, which is equivalent to $1,000,000 notional. A futures price of $101 (a 1 point move in price) is equivalent to $1,000,000 in notional per contract, and an A+B-C total value of $10,000 per contract. For the purposes of this file, a value of.5 is equivalent to $5000 per contract, and a value of.01 is equivalent to $100 per contract. 2 Rate in % This is the actual interest rate that was used in the calculation. So a value of.423 is actually a rate of.423%. A value of 1.5 would 1.5%. 21 Copyright, Eris Exchange, LLC 2011

The entire contents of this document are copyrighted under United States law and protected by worldwide copyright laws and treaty provisions. This document may not be copied, distributed or transmitted in any way without prior written consent of Eris Exchange, LLC. This document may be used for personal, non-commercial use provided that the user does not modify or alter the document in any way, nor delete or change any copyright or trademark notice. All materials in this document are provided for lawful purposes only. Eris Exchange reserves complete title and full intellectual property rights for this document and all contents herein. Eris Exchange, Eris BlockBox, Eris SwapBook, and Eris PAI are all trademarks of Eris Exchange LLC. The Eris Logo is a trademark of the Eris Exchange. All Eris Exchange, LLC trademarks, logos, service marks, trade dress, slogans, copyrighted designs or other brand features, including hyperlinks to Eris Exchange, LLC Web site (collectively, "Brand Features") are owned by Eris Exchange and will be used only as explicitly licensed by Eris Exchange, LLC, and only under the terms and conditions and for the purposes described in such License. The information within this document has been compiled by Eris Exchange for general purposes only. Eris Exchange assumes no responsibility for any errors or omissions. Although every attempt has been made to ensure the accuracy of the information within this document, Eris Exchange assumes no responsibility for any errors or omissions. Additionally, all examples in this document are hypothetical situations, used for explanation purposes only, and should not be considered investment advice or the results of actual market experience. The information contained in this document does not constitute legal or investment advice. All matters pertaining to rules and specifications herein are made subject to and are superseded by official Eris Exchange, LLC rules. Current rules should be consulted in all cases concerning contract specifications. 2011 Eris Exchange. All rights reserved. 22 Copyright, Eris Exchange, LLC 2011

Attachment 3 OIS Based Curve Methodology Confidential Treatment Requested by Eris Exchange, LLC Pursuant to 17 CFR 145.9 [See APPENDIX A for Attachment 3]

Attachment 4 Equivalence: Eris Exchange Interest Rate Swap Futures and Uncleared OTC Interest Rate Swaps

Equivalence: Eris Exchange Interest Rate Swap Futures and Un-cleared OTC Interest Rate Swaps Eris Exchange interest rate swap futures contracts ( Eris contracts ) replicate the cash flows of un-cleared OTC interest rate swaps 1 ( IRS ). The sensitivity to changes in swap rates (i.e., DV01) and the exposure to changes in LIBOR are the same for both instruments. The cash flow equivalence between Eris contracts and IRS can be defined as: Fixed/ Swap s (IRS) + Collateral (IRS) = Variation Margin (Eris contracts) [1] Formula [1] can be analyzed and applied to daily and cumulative cash flows at all points in time over the life of the contracts. This paper will address both applications of the formula. Note that there are 2 primary mechanical differences between Eris contracts and IRS: 1. Timing and Method of s a. IRS: Known fixed and floating payment amounts are exchanged directly between the counterparties on Dates throughout the life of the transaction. The NPV of projected future cash flows is exchanged between counterparties via the daily collateral process, according to the terms of the applicable Credit Support Annex 1 b. Eris contracts: All cash flows are exchanged between counterparties through variation margin via the daily mark-to-market process administered by the Clearing House. This valuation process incorporates past fixed and floating amounts and the NPV of projected future cash flows 2. Distinction between Collateral for IRS and Variation Margin for cleared derivatives including Eris contracts a. Collateral (IRS): Collateral posted under a bilateral Credit Support Annex belongs to the party posting the collateral; ownership does not transfer to the receiving party b. Variation Margin (Eris contracts): Variation margin for cleared transactions (including Eris contracts) legally belongs to the owner of the account where the variation margin resides, and can be withdrawn and reinvested at the owner s discretion To focus the analysis, the following items are intentionally excluded from this discussion: 1. Interest paid on collateral in IRS and the equivalent calculation for Eris contracts, Eris Price Alignment Interest (Eris PAI TM ) 2. Initial Margin (Eris contracts) and Independent Amount (IRS) 1 Un-cleared OTC interest rate swaps are assumed to be executed under an ISDA Master Agreement and Credit Support Annex with a $0 Threshold. www.erisfutures.com 1 Copyright 2011 Eris Exchange, LLC. All rights reserved.